I have a form with a grid.
When I click first time on certain column's header - data ordered on current field in ASCENDING order. Second click on the same header - data ordered in DESCENDING mode. How can I display the order (I like the Explorer's way - small triangle on the header)? I have one idea - to create my own font with all letters, including triangles, and use this font for headers' captions.

Please, comment my idea, may be there are other nice ideas and solutions.
Thank you very much for all ideas.